Electroacoustic waves which are supported by strip domain that is moving in ferroelectric crystal

The paper discusses peculiarities of between-domain fissure electroacoustic wave, which propagates along strip domain, while this domain moves uniformly in tetragonal ferroelectric. A non-relativistic quasistatic approximation shows that this electroacoustic wave of surface type is transformed to the wave of combined inflow/outflow leakage type under influence of the strip domain movement. Unequal behaviour of symmetrical and antisymmetrical modes of electroacoustic wave parameters alteration in the result of the strip domain movement is noted. This behaviour is most appreciable for the low-frequency spectral region. It is ascertained that within the ferroelectrics, which have high electromechanical connexion, the electroacoustic wave localization scope in the vicinity of the moving strip domain is lesser then a few of wavelength. This indicates the possibility of electroacoustic wave transmission transferring by the moving strip domain.